Improvement in rolling or frictionless jou rnals



n UNITED STATES,-

PATENT OFFICE.

DANIEL HOLMES, OF CHELSEA, MASSACHUSETTS.

Specification forming part of Letters Patent No. 34,962, dated A pril 15, i962.

To,l all whom i6 may concern.l

Be it known that I, DANIEL HOLMES, of

Chelsea, in the countyof Suffolk, in the State of Massachusetts, have invent-ed a new and improved method of maintaining in their rela-- tive position the several .rollers of an antifriction journal-box; and I do hereby declare that the followingis a full and exact description thereof, reference being had to the accompanying drawings, and to the letters oi reference marked thereon.

In the drawin gs'similar letters refer to similar parts. f

The nature ot my invention consists in the peculiar arrangement of the rollers, by which all parts of their peripheries shall roll upon other peripheries, and that none of the ro1lers require axles of any kind, nor grooves nor guides to slide in, there-being neither sliding nor axle motion.

To enable others'skilled in the art to make and use my invention, I will proceed to (lescribe it, reference being made to the accompanying drawings, and to the lettere of reference marked thereon.

' In Figures l and 2, A represents the shaft or axle. In the case ot' a rail-car the wheel (not represented in these drawings) is`fastcned permanently to the axle, as in the ordinary arrangement.

B B B, &e., in Figs. 1 andV 2 represent the. primary rollers, which serve to bear the load dac., and C C C are suoli 'that the rollers C C,

&c., will always be held in a position exterior to the circle passing through the-centers of the 'rollers B B' B", dac. The s indie c, or small part of therollers C C C C rolls upon the rollers I3 B Bf', keeping theln from touching .each other, and in turn are kept in relative position by them. 'lhe enlarged part or heads C C of the rollers C t" t t" roll upon the inside of flanges D D, Figs] andt. The flanges D D are made fast to the shaft. A, and

serv'e the purpose, together with the rollers' C C C C', of keeping the rollers I! l"l}",&c.,

always in relative position with cach other and around the shaft A. 'lhe cndsof the made slightly concave, in order that 'there may be no rubbing friction one upon the other. The insides of the flanges l) D' are also concaved, as shown in Fig. 3, for the same purpose. Gf in Fig.` 1 represents the key by which lthe fiange 1) is fastened tothe shaft-A. In the perspective view, Fig. l, but one-half of the box E is shown, the upper half beinga counterpart ofthe part E. (Shown.)

I" in Fig. 1 represents a set-screw, which keeps.v the shaftV A from'moving in the direction of the length.

The relative dimensions ot' all. the parts (tobe found by formula or experiment) musthe such that all of the contacting-peripheries shall move in lia-rnion'y-t-hat is,wth the same p velocities, in the saine direction, each with each. p

The several pal'ts'can he made of any 'suitable metal'.

the enlarged ends .of the spool-form rollers C C C C', (to secure rolling motion,) bym-funs of vwhich the principal rollers li l li", zr-.,-

are held in pla-ccfsubstant-ially as and'for the purpose herein set forth.

DANIEL HOLMES.

Witnesses:

`WILLIAM EDsoN,

JOHN A; COLE. 

